R, 175175 178 bytes

cat(paste('iPhone',c('','3G','3GS','4','4S','5','5c','5s','6','6 Plus','6s','6s Plus','SE','7','7 Plus','8','8 Plus','X','XR','XS','XS Max','11','11 Pro','11 Pro Max')),sep='\n')

Try it online!Try it online!

Manual is shorter than this programmatic take:

R, 231 bytes

r=rep;b='';m='Plus';cat(paste("iPhone",paste0(r(c(b,3:6,'SE',7:8,'X',11),c(1,2,2,3,3,1,2,2,4,3)),c(b,'G','GS',b,'S',b,'c','s',b,'s','s',r(b,6),'R','S','S',r(b,3))),c(r(b,9),m,b,m,b,b,m,b,m,r(b,3),'Max',b,'Pro','Pro Max')),sep='\n')

Try it online!